{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T14:31:28Z","timestamp":1785767488815,"version":"3.56.0"},"reference-count":44,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2022,2,16]],"date-time":"2022-02-16T00:00:00Z","timestamp":1644969600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01 HD034568"],"award-info":[{"award-number":["R01 HD034568"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01 HD096032"],"award-info":[{"award-number":["R01 HD096032"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["UH3 OD023286"],"award-info":[{"award-number":["UH3 OD023286"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Paediatric Perinatal Epid"],"published-print":{"date-parts":[[2022,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Retrospective studies suggest that menstrual cycle length may be a risk marker of adverse pregnancy outcomes, but this evidence is susceptible to recall bias.<\/jats:p><\/jats:sec><jats:sec><jats:title>Objective<\/jats:title><jats:p>To evaluate the prospective association between menstrual cycle length and the risk of adverse pregnancy outcomes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Secondary analysis of 2046 women enrolled in Project Viva at ~10\u00a0weeks of gestation and followed through delivery. The exposure was menstrual cycle length. The outcomes included gestational glucose tolerance (gestational diabetes\/impaired glucose tolerance [GDM\/IGT] and isolated hyperglycaemia), hypertensive disorders of pregnancy (gestational hypertension\/preeclampsia), gestational weight gain, birthweight\u2010for\u2010gestational age z\u2010scores (BWZ) categorised in tertiles, preterm birth and birth outcome (live birth and pregnancy loss). We used modified Poisson and multinomial logistic regression adjusted for age, race\/ethnicity, parity, age at menarche and pre\u2010pregnancy body mass index.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Mean (SD) age at enrolment was 32.1 (4.9) years. Most women (74.3%) had a cycle length of 26\u201334\u00a0days (reference group), 16.2% reported short cycles (\u226425\u00a0days), and 9.5% reported long\/irregular cycles (\u226535\u00a0days\/too irregular to estimate). Compared with the reference group, women with short cycles had lower odds of GDM\/IGT (odds ratio [OR] 0.50, 95% confidence interval [CI] 0.28, 0.89), whereas women with long\/irregular cycles had higher odds (OR 1.72, 95% CI 1.04, 2.83). Additionally, women with short cycles had higher odds of having a newborn in the lowest tertile of BWZ (OR 1.45, 95% CI 1.06, 1.98). There was a U\u2010shaped relation between cycle length and preterm birth with both short (relative risk [RR] 1.49, 95% CI 0.98, 2.27) and long\/irregular (RR 2.04, 95% CI 1.30, 3.20) cycles, associated with a higher risk.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Variation in menstrual cycle length may be a risk marker of GDM\/IGT, lower birth size and preterm birth and flag women who may benefit from targeted monitoring and care before and during pregnancy.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ppe.12866","type":"journal-article","created":{"date-parts":[[2022,2,16]],"date-time":"2022-02-16T19:44:30Z","timestamp":1645040670000},"page":"347-355","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Menstrual cycle length and adverse pregnancy outcomes among women in Project Viva"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5783-5365","authenticated-orcid":false,"given":"Diana C.","family":"Soria\u2010Contreras","sequence":"first","affiliation":[{"name":"Center for Nutrition and Health Research National Institute of Public Health  Cuernavaca Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Perng","sequence":"additional","affiliation":[{"name":"Department of Epidemiology Colorado School of Public Health University of Colorado  Aurora Colorado USA"},{"name":"Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center Department of Epidemiology Colorado School of Public Health University of Colorado  Aurora Colorado USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheryl L.","family":"Rifas\u2010Shiman","sequence":"additional","affiliation":[{"name":"Division of Chronic Disease Research Across the Lifecourse Department of Population Medicine Harvard Medical School and Harvard Pilgrim Health Care Institute  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7752-2585","authenticated-orcid":false,"given":"Marie\u2010France","family":"Hivert","sequence":"additional","affiliation":[{"name":"Division of Chronic Disease Research Across the Lifecourse Department of Population Medicine Harvard Medical School and Harvard Pilgrim Health Care Institute  Boston Massachusetts USA"},{"name":"Diabetes Unit Massachusetts General Hospital  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jorge E.","family":"Chavarro","sequence":"additional","affiliation":[{"name":"Department of Nutrition Harvard T.H. Chan School of Public Health  Boston Massachusetts USA"},{"name":"Channing Division of Network Medicine Department of Medicine Brigham and Women\u2019s Hospital and Harvard Medical School  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emily","family":"Oken","sequence":"additional","affiliation":[{"name":"Division of Chronic Disease Research Across the Lifecourse Department of Population Medicine Harvard Medical School and Harvard Pilgrim Health Care Institute  Boston Massachusetts USA"},{"name":"Department of Nutrition Harvard T.H. 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